Pipe welding TIG 141, MMA 111 in positions HL45, PH and welding of pressurized pipes (stainless and black metal)

Advanced course, advanced training.

Name of the institution:
 OÜ A1koolitus (a1koolitus.ee)

Name of the program: Pipe welding TIG 141, MMA 111 – 178 academic lessons

The curriculum group and the start of curriculum development: 521 Mechanics and metalworking. The competence of the fourth category of welding standards.

Level of education: Additional education for adults

Languages of study: Estonian, Russian or English

Training time: Annual, 23 training days.

Training Registration Information: On-site Registration

Target group and starting conditions: Adults (from 18 years old) will be admitted to welder training on the basis of an application. All candidates who meet the requirements for admission and pass the test on the spot will also be admitted to enroll in a course.

Division into groups: The grouping of students takes into account the level of knowledge and the spoken language.

Total studying volume (academic lesson/s): 

178 academic lessons, of which,
20 academic lesson/s theory,
140 academic lesson/s practice,
14 academic lesson/s Preparation for an exam – visual control,
4 academic lesson/s professional advice.


Methods of teaching: Practical training at an individual welding site consists of performing various tasks of the instructor.

Online lessons: None

Studying goal: By the end of the training, the welder will be able to weld a wide range of welding products, parts and building structures. For more aptly done work (for products requiring special control), consult with your supervisor, coordinator or master. The welder uses the following welding techniques: TIG-welding (141, 142) и Manual arc welding (MMA 111).


Studying outcomes: 

By the end of the studying process, the welder:
Familiar with working drawings, work instructions and technological card (WPS)
Is able to choose the right working and welding tools
Can set up welding equipment and select modes
Can properly organize the workplace
Can choose the right self-protective equipment
Can create, assemble parts and create assemblies
Is able to perform quality control and eliminate defects if necessary
Knows welding TIG and trimming
Knows manual arc welding and trimming


Learning Content: 

1.1   Organization of the workplace, selection and preparation of production and the necessary things for work

1.1.1  Acquaintance with the drawing, job description and technological card (WPS)

1.1.2 Tool selection

1.1.3 Welding equipment selection

1.1.4 Installation of welding equipment and mode selection

1.1.5  Organization of the proper working place

1.1.6 Selection of personal protective equipment

1.2   Preparation and inspection of details and seams

1.2.1 Preparation and the assembly of the details

1.2.2 Testing and setting up welding assemblies

1.3   Quality control and troubleshooting

1.3.1 Weld inspection and troubleshooting

1.3.2 Assembly control

1.3.3 Final control

1.4   Welding TIG and post-processing of the components

1.4.1  Welding of the metals with TIG. Light the vault Defrosting rolls to a flat position PA, PF, PC, PE Welding of seam welds in the positions of PA, PF    Welding seams welds on the front-end pipes in position PA (rotatable)    Irreversible pipe welding at the base of H-L045. Root stitches.    Irreversible pipe welding at the base of H-L045. Outside seams.

1.4.2  Mid-term control

1.4.3  Post-processing of the finished product.

1.5 Conduction of manual welding and trimming/finishing parts

1.5.1 Manual arc welding Light the vault Defrosting rolls to a flat position PA, PF, PC, PE Welding T-seams in positions PA, PF, PC, PE    Welding of external seams in positions PA, PF, H-L045

1.5.2  Mid-term control

1.5.3 Post-processing of the finished product

1.6 Preparation for an exam

1.7 Visual control


The description of the studying environment: Both theoretical and practical sections will be held at Pae 29, Tallinn. Safety and cleanliness are guaranteed. To study the theory, we have 4 classrooms. Depending on the subject, each class accommodates more than 30 people. The theoretical part is given in-hand (or on memory cards) to strengthen knowledge after the lesson. We also provide both personal protection and work equipment for practical exercises.

List of training materials: WPS if necessary

Release requirements, including assessment methods and assessment criteria: At least 80% of attendance is a prerequisite for completing the training. In addition, the detail must be welded in accordance with WPS and in accordance with the evaluation criteria.

Documents to be issued: The complete certificate if the requirements in obtaining it are met. Certificate of participation if the learning outcomes were not achieved, but the student participated in the study. The certificate is issued depending on the number of hours visited, but not if the student participated in less than half of the lessons.


Summary: The course is intended for workers with metal (who previously studied and worked in metalworking) and who face this type of daily work and need high-quality and accurate welding. The course aims to acquire professional practical knowledge. A student who completed the course will be able to apply the knowledge gained, namely, to weld various materials and details, considering the conduction of his daily duties using tools and welding equipment. After completing the course and passing the final exam, the student is ready to work or take an internship.

Formation of the final result:
Knowledge and the use of professional terminology, successful completion of the practical part of the course
Visual examination by WPS

Curriculum Approved: 24.04.2020